Detailed Instructions: In this task, you will be presented with a passage, and you need to write an **implausible** answer to to fill in the place of "_". Your answer should be incorrect, but should not be out of context. Try using words that are related to the context of the passage, but are not the correct answer.  Even though there exist multiple wrong answers, we only need a single wrong answer.
Problem:When Bobby and Riley George were born 30 minutes apart with light skin, curly hair and brown eyes there was no doubting they were twins. But four years on, the boys couldn't be different as Bobby has blue eyes and a light complexion while Riley's skin and hair is dark like his father's. The twins, from Feltham, West London, were born to mother Abigail Tongue, 22, who is white and father Richard George, 26, who is of mixed race. When they first found out that Miss Tongue was expecting twins, doctors said there was a one-in-a-million chance that the babies, created by two separate eggs, would have a different skin tone.Twins Bobby and Riley George were born in 2011 and looked similarTheir mother Abigail is white and their father Richard is of mixed raceBut at six weeks old both boys' appearances started to change differentlyBobby now has light skin and blue eyes and Riley brown eyes and dark skin 
 Question:At the same time _'s skin started to become darker and his hair became straight and brown.
Solution:
Bobby